The Hubble flow: an observer's perspective

A.V. Toporensky, S.B. Popov
Lomonosov Moscow State University, Shternberg State Astronomical Institute, Universitetskii prosp. 13, Moscow, 119234, Russian Federation

This paper discusses some aspects of cosmological expansion as viewed by an observer. It identifies the rate of change of the angular distance v_&Theta with respect to the observer’s clock as a crucial quantity in adequately understanding the expansion. Using this quantity and the angular distance in addition to the traditional illustration approach provides a more vivid picture of the cosmological expansion and is key for its adequate visualization.

PACS: 98.62.Py, 98.80.−k, 98.80.Es (all)
DOI: 10.3367/UFNe.0184.201407f.0767
URL: https://ufn.ru/en/articles/2014/7/e/
Web of Science

000343769200005
Scopus

2-s2.0-84907903173
ADS NASA

2014PhyU...57..702P
Citation: Toporensky A V, Popov S B "The Hubble flow: an observer's perspective" Phys. Usp. 57 708–713 (2014)

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Received: 2nd, September 2013, revised: 15th, October 2013, accepted: 15th, October 2013

Оригинал: Топоренский А В, Попов С Б «Хаббловский поток в картине наблюдателя» УФН 184 767–774 (2014); DOI: 10.3367/UFNr.0184.201407f.0767

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